diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
index 1e91e36..17d33ea 100644
--- a/.github/workflows/gh-pages.yml
+++ b/.github/workflows/gh-pages.yml
@@ -28,7 +28,7 @@ jobs:
         with:
           fetch-depth: 0 # need full history to get page last modified times
       - name: Setup Ruby
-        uses: ruby/setup-ruby@5cfe23c062c0aac352e765b1b7cc12ea5255ccc4 # v1.156.0
+        uses: ruby/setup-ruby@a05e47355e80e57b9a67566a813648fa67d92011 # v1.157.0
         with:
           ruby-version: '3.1'
           bundler-cache: true # runs 'bundle install' and caches installed gems automatically